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CVE-2024-40937— gve: Clear napi->skb before dev_kfree_skb_any()

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel 存在安全漏洞，该漏洞源于 gve 组件的 gve_rx_free_skb 函数未能正确清除 napi_skb，可能导致使用已释放的 skb。

CVSS 9.8 · Critical EPSS 0.74% · P54

Possible ATT&CK Techniques 1 AI

T1205 · Traffic Signaling

Affected Version Matrix 12

VendorProduct Version RangeStatus
Linux Linux 9b8dd5e5ea48bbb7532d20c4093a79d8283e4029< 75afd8724739ee5ed8165acde5f6ac3988b485cc affected
9b8dd5e5ea48bbb7532d20c4093a79d8283e4029< d221284991118c0ab16480b53baecd857c0bc442 affected
9b8dd5e5ea48bbb7532d20c4093a79d8283e4029< 2ce5341c36993b776012601921d7688693f8c037 affected
9b8dd5e5ea48bbb7532d20c4093a79d8283e4029< a68184d5b420ea4fc7e6b7ceb52bbc66f90d3c50 affected
9b8dd5e5ea48bbb7532d20c4093a79d8283e4029< 6f4d93b78ade0a4c2cafd587f7b429ce95abb02e affected
5.14 affected
< 5.14 unaffected
5.15.162≤ 5.15.* unaffected
… +4 more rows
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I. Basic Information for CVE-2024-40937

Vulnerability Information
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Vulnerability Title
gve: Clear napi->skb before dev_kfree_skb_any()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: gve: Clear napi->skb before dev_kfree_skb_any() gve_rx_free_skb incorrectly leaves napi->skb referencing an skb after it is freed with dev_kfree_skb_any(). This can result in a subsequent call to napi_get_frags returning a dangling pointer. Fix this by clearing napi->skb before the skb is freed.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel 存在安全漏洞，该漏洞源于 gve 组件的 gve_rx_free_skb 函数未能正确清除 napi_skb，可能导致使用已释放的 skb。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 9b8dd5e5ea48bbb7532d20c4093a79d8283e4029 ~ 75afd8724739ee5ed8165acde5f6ac3988b485cc -
Linux Linux 5.14 -

II. Public POCs for CVE-2024-40937

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III. Intelligence Information for CVE-2024-40937

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Other References for CVE-2024-40937 (5)

Same Patch Batch · Linux · 2024-07-12 · 122 CVEs total

CVE-2024-40999 9.8 CRITICAL net: ena: Add validation for completion descriptors consistency
CVE-2024-40907 9.8 CRITICAL ionic: fix kernel panic in XDP_TX action
CVE-2024-40923 9.8 CRITICAL vmxnet3: disable rx data ring on dma allocation failure
CVE-2024-40983 9.8 CRITICAL tipc: force a dst refcount before doing decryption
CVE-2024-40910 8.8 HIGH ax25: Fix refcount imbalance on inbound connections
CVE-2024-40911 8.8 HIGH wifi: cfg80211: Lock wiphy in cfg80211_get_station
CVE-2024-40941 8.1 HIGH wifi: iwlwifi: mvm: don't read past the mfuart notifcation
CVE-2024-40953 7.9 HIGH KVM: Fix a data race on last_boosted_vcpu in kvm_vcpu_on_spin()
CVE-2024-40956 7.8 HIGH dmaengine: idxd: Fix possible Use-After-Free in irq_process_work_list
CVE-2024-40918 7.8 HIGH parisc: Try to fix random segmentation faults in package builds
CVE-2024-40924 7.8 HIGH drm/i915/dpt: Make DPT object unshrinkable
CVE-2024-40925 7.8 HIGH block: fix request.queuelist usage in flush
CVE-2024-40943 7.8 HIGH ocfs2: fix races between hole punching and AIO+DIO
CVE-2024-40947 7.8 HIGH ima: Avoid blocking in RCU read-side critical section
CVE-2024-40949 7.8 HIGH mm: shmem: fix getting incorrect lruvec when replacing a shmem folio
CVE-2024-40990 7.8 HIGH RDMA/mlx5: Add check for srq max_sge attribute
CVE-2024-40986 7.8 HIGH dmaengine: xilinx: xdma: Fix data synchronisation in xdma_channel_isr()
CVE-2024-40989 7.8 HIGH KVM: arm64: Disassociate vcpus from redistributor region on teardown
CVE-2024-40984 7.8 HIGH ACPICA: Revert "ACPICA: avoid Info: mapping multiple BARs. Your kernel is fine."
CVE-2024-40991 7.8 HIGH dmaengine: ti: k3-udma-glue: Fix of_k3_udma_glue_parse_chn_by_id()

Showing top 20 of 122 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-40937

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